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Electric Circuits

Electric Circuits
Rms value is defined based on which of the following?

 Heating effect
 Charge transfer
 Voltage
 Current

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Electric Circuits
The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be

 4R Ω
 8R Ω
 R Ω
 2R Ω

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Electric Circuits
Two point charges of 4μC are placed at a distance of 3 cm apart from each other in free space. Force acting on two charges will be

 100 N
 0.02 N
 160 N
 400 N

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Electric Circuits
2) Two sinusoidal emfs are given as e1 = Asin(wt+45) and e2 = Bsin(wt-30). The phase difference between the two quantities in degrees is

 75.
 105.
 60.
 15.

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Electric Circuits
Nodal analysis can be applied for

 planar networks.
 non planar networks.
 neither planar and non planar networks.
 both planar and non planar networks.

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Electric Circuits
Current efficiency in electroplating is usually

  99 %.
  50 to 60 %.
  70 to 80 %.
  90 to 98 %.

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MORE MCQ ON Electric Circuits

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